elfgen: Ecological Limit Function Model Generation and Analysis Toolkit

A toolset for generating Ecological Limit Function (ELF) models and evaluating potential species loss resulting from flow change, based on the 'elfgen' framework. ELFs describe the relation between aquatic species richness (fish or benthic macroinvertebrates) and stream size characteristics (streamflow or drainage area). Journal publications are available outlining framework methodology (Kleiner et al. (2020) <doi:10.1111/1752-1688.12876>) and application (Rapp et al. (2020) <doi:10.1111/1752-1688.12877>).

Version:	2.3.5
Depends:	R (≥ 3.5)
Imports:	utils, stringr, quantreg, stats, ggplot2, testit, scales, sqldf, curl, sbtools, nhdplusTools
Suggests:	testthat (≥ 2.1.0)
Published:	2026-05-23
DOI:	10.32614/CRAN.package.elfgen
Author:	Joseph Kleiner [aut], Robert Burgholzer [ctb], Connor Brogan [cre]
Maintainer:	Connor Brogan <connor.brogan at deq.virginia.gov>
License:	MIT + file LICENSE
URL:	https://github.com/HARPgroup/elfgen
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	elfgen results

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